Family Trogidae - Hide Beetles

based on the dissertation available online here

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Omorgus is considered a synonym of Trox and its spp. are treated as "suberosus group"; see also(1)

key, p. 24; species descriptions: • acanthinus 50 • aequalis 29 • affinis 30 • asper 68 • atrox 33 • capillaris 55 • carinatus 63 • contractus 46 • fascifer 31 • foveicollis 39 • frontera 41 • fuliginosus 66 • gemmulatus 49 • hamatus 34 • inflatus 70 • insularis 41 • laticollis 32 • loxus 58 • monachus 64 • nodosus 72 • plicatus 52 • punctatus 69 • robinsoni 47 • rubricans 61 • scaber 28 • scabrosus 67 • scutellaris 77 • sonorae 43 • sordidus 55 • spinulosus 35 • s. dentibius 38 • s. simi 37 • s. spinulosus 38 • striatus 31 • suberosus 60 • terrestris 40 • tesselatus 71 • texanus 75 • tomentosus 63 • tuberculatus 50 • tytus 57 • umbonatus 76 • unistriatus 56 • variolatus 53

Full title: Aquatic Hydrophilidae and Hydraenidae of Wisconsin (Coleoptera). I. Introduction, Key to Genera of Adults, and Distribution, Habitat, Life Cycle, and Identification of Species of Helophorus Fabricius, Hydrochus Leach, and Berosus Leach (Hydrophilidae), and Hydraenidae

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